The Lake
Episode 11 · 2007-08-24

- Sci-Fi & Fantasy
- Animation
- Comedy
- Action & Adventure
- Kids
Episode overview
Jeremy, Aelita, Ulrich, and Odd go with the rest of their science class on a field trip to an island in the middle of a nearby lake to study water-based plant life. Yumi, not part of the class, remains behind to sit through two important exams. Jeremy's fears about X.A.N.A. attacking at such an inopportune moment are realized when X.A.N.A. creates an electricity-blasting sludge that attacks anyone who approaches the shore. Yumi is forced to go to Lyoko alone. She fights William and during their fight is able to reach his true mind and personality. Though X.A.N.A. soon manages to regain control of William, Yumi is saved by Aelita, who escaped the island on Sissi's bike. Aelita is able to deactivate the tower and Yumi claims that one day they will bring William home. She initiates a return trip to the past and the class is saved from electrocution.
23 minutes
Season 4 episodes
1. William Returns2007-08-13
2. Double Take2007-08-14
3. Opening Act2007-08-30
4. Wreck Room2007-08-15
5. Skidbladnir2007-08-16
6. Maiden Voyage2007-08-17
7. Crash Course2007-08-20
8. Replika2007-08-21
9. I'd Rather Not Talk About It2007-08-22
10. Hot Shower2007-08-23
11. The Lake2007-08-24
12. Lost at Sea2007-08-27
13. Lab Rat2007-08-28
14. Bragging Rights2007-08-29
15. Dog Day Afternoon2007-08-29
16. A Lack of Goodwill2007-08-30
17. Distant Memory2007-08-31
18. Hard Luck2007-09-08
19. Guided Missile2007-09-15
20. Kadic Bombshell2007-09-22
21. Canine Conundrum2007-09-29
22. A Space Oddity2007-10-06
23. Cousins Once Removed2007-10-13
24. Music to Soothe The Savage Beast2007-10-20
25. Wrong Exposure2007-10-27
26. Bad Connection2007-11-03
27. Cold Sweat2007-11-03
28. Down to Earth2007-11-03
29. Fight to the Finish2007-11-10
30. Echoes2007-11-10